Neutrino-induced meson productions

Nov 3, 2015
8 pages
Published in:
  • JPS Conf.Proc. 10 (2016) 041001
Contribution to:
  • Published: 2016
e-Print:

Citations per year

20142015201601
Abstract: (Physical Society of Japan)
We develop a dynamical coupled-channels (DCC) model for neutrino-nucleon reactions in the resonance region, by extending the DCC model that we have previously developed through an analysis of πN,γNπN,ηN,KΛ,KΣ\pi N,\gamma N \to \pi N,\eta N,K\Lambda ,K\Sigma reaction data for W ≤ 2.1 GeV. We analyze electron-induced reaction data for both proton and neutron targets to determine the vector current form factors up to Q^2 ≤ 3.0 (GeV/c)^2. Axial-current matrix elements are derived in accordance with the Partially Conserved Axial Current (PCAC) relation to the πN interactions of the DCC model. As a result, we can uniquely determine the interference pattern between resonant and non-resonant amplitudes. Our calculated cross sections for neutrino-induced single-pion productions are compared with available data, and are found to be in reasonable agreement with the data. We also calculate the double-pion production cross sections in the resonance region, for the first time, with relevant resonance contributions and channel couplings. The result is compared with the double-pion production data. For a future development of a neutrino-nucleus reaction model and/or a neutrino event generator for analyses of neutrino experiments, the DCC model presented here can give a useful input.
Note:
  • 8 pages, 12 figures, Contribution to the proceedings of 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015), May 25-28 2015, Osaka, Japan
  • new physics
  • neutrino nucleon: interaction
  • meson baryon: interaction
  • interaction: model
  • model: coupled channel
  • PCAC model
  • neutrino: oscillation